EP 0285401 A2 19881005 - Display device.
Title (en)
Display device.
Title (de)
Anzeigegerät.
Title (fr)
Dispositif d'affichage.
Publication
Application
Priority
JP 7636087 A 19870331
Abstract (en)
A display control unit is combined with a display device including a display element and electrodes for applying an electric field to the display element. The display control unit includes a control unit for changing and setting a plurality of voltages applied to the electrodes such that one(VC) of the plurality of voltages is fixed, and differences between the fixed voltages and other voltages (V1-V4) are kept at a predetermined ratio.
IPC 1-7
IPC 8 full level
G02F 1/133 (2006.01); G09G 3/18 (2006.01); G09G 3/36 (2006.01)
CPC (source: EP US)
G09G 3/36 (2013.01 - EP US); G09G 3/3629 (2013.01 - EP US); G09G 3/3644 (2013.01 - EP US); G09G 3/3681 (2013.01 - EP US); G09G 3/3692 (2013.01 - EP US); G09G 3/3696 (2013.01 - EP US); G09G 2310/0232 (2013.01 - EP US); G09G 2310/0245 (2013.01 - EP US); G09G 2310/04 (2013.01 - EP US); G09G 2310/06 (2013.01 - EP US); G09G 2310/062 (2013.01 - EP US); G09G 2310/065 (2013.01 - EP US); G09G 2320/0209 (2013.01 - EP US); G09G 2320/041 (2013.01 - EP US); G09G 2330/021 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0285401 A2 19881005; EP 0285401 A3 19900718; EP 0285401 B1 19950104; DE 3852664 D1 19950216; DE 3852664 T2 19950518; JP 2612267 B2 19970521; JP S63243924 A 19881011; US 4962376 A 19901009
DOCDB simple family (application)
EP 88302852 A 19880330; DE 3852664 T 19880330; JP 7636087 A 19870331; US 17539888 A 19880330